Carousel images size guide: Instagram and LinkedIn

Carousel images size is the set of pixel dimensions, aspect ratio, and file format used to display multi-slide social posts without cropping. The best carousel images size for Instagram is 1080x1350 pixels (4:5 portrait). For LinkedIn, use 1080x1350 pixels or 1080x1080 pixels in a PDF. This guide helps social media marketers, creators, agencies, coaches, and SaaS teams.

Key takeaways

Instagram carousels perform best at 1080x1350 pixels using a 4:5 portrait ratio to fill phone screens.
LinkedIn document carousels support up to 300 pages and 100 MB, with 1080x1350 pixels looking best on phones.
Exporting your slides in the sRGB color space stops dull colors caused by social media compression.
Seamless two-slide carousels need a master canvas of 2160x1350 pixels before you split them into two 1080x1350 slides.
Checking slide dimensions in a browser tool stops blurry text, cropped borders, and bad layout shifts.

Recommended carousel images size overview by platform

The recommended carousel images size depends on the platform you choose. For Instagram, use 1080x1350 pixels for portrait slides or 1080x1080 pixels for square slides. For LinkedIn, upload a PDF with pages built at 1080x1350 pixels or 1080x1080 pixels.

Instagram shows carousels as image sets. LinkedIn shows them through an uploaded PDF document. Both platforms work best when your files match phone screen sizes.

The table below shows the technical specs for each network as of 2026.

Metric	Instagram Portrait	Instagram Square	LinkedIn Portrait Document	LinkedIn Square Document
Optimal pixel dimensions	1080 x 1350 px	1080 x 1080 px	1080 x 1350 px	1080 x 1080 px
Aspect ratio	4:5	1:1	4:5	1:1
Minimum dimensions	600 x 750 px	600 x 600 px	595 x 842 px (A4 base)	600 x 600 px
Maximum dimensions	1080 x 1350 px	1080 x 1080 px	2160 x 2700 px (2x scale)	2160 x 2160 px (2x scale)
Native file formats	JPEG, PNG	JPEG, PNG	PDF	PDF
Maximum file size	30 MB per image	30 MB per image	100 MB total	100 MB total
Slide count limit	Up to 20 slides	Up to 20 slides	Up to 300 pages	Up to 300 pages
Recommended color profile	sRGB	sRGB	sRGB	sRGB

Building your templates at 1080x1350 pixels saves time. You can post the exact same slides on both Instagram and LinkedIn without extra edits. Read our Instagram Carousel Size Guide 2026: Dimensions, Ratios, and Specs for more details on Meta platforms.

When you manage content across multiple platforms, workflow efficiency matters. Teams that produce weekly carousel content often waste hours converting graphics between portrait and square layouts. Sticking with 1080x1350 pixels lets you use one master template for both networks without reformatting margins or adjusting font sizes.

Platform differences also affect how viewers interact with your content. Instagram displays carousels directly in the main feed where users swipe horizontally on their mobile screens. LinkedIn converts your uploaded PDF into a document reader widget that includes navigation arrows, full-screen buttons, and page counters.

Despite these UI differences, the visual real estate remains identical. Both networks prioritize vertical space on mobile devices. Designing your graphics with clear vertical boundaries guarantees that your slides appear polished across every operating system.

What are the exact pixel dimensions for Instagram carousel images?

The exact pixel dimensions for Instagram carousel images are 1080x1350 pixels for portrait, 1080x1080 pixels for square, and 1080x566 pixels for landscape. Instagram lets you post between 2 and 20 slides per post. Every slide in one post must share the exact same aspect ratio.

+-----------------------------------------------------------+
| Instagram Carousel Aspect Ratios Compared                 |
+--------------------+------------------+-------------------+
| Landscape (1.91:1) | Square (1:1)     | Portrait (4:5)    |
| 1080 x 566 px      | 1080 x 1080 px   | 1080 x 1350 px    |
|                    |                  |                   |
| [================] | [==============] | [==============]  |
|                    | [              ] | [              ]  |
| (Lowest mobile     | [              ] | [              ]  |
| screen coverage)   | [==============] | [              ]  |
|                    | (Balanced grid   | [==============]  |
|                    | presentation)    | (Maximum feed     |
|                    |                  | visibility)       |
+--------------------+------------------+-------------------+

The 4:5 portrait format (1080x1350 pixels)

The 4:5 portrait ratio is the top choice for Instagram growth. It fills about 70% of the screen on phones like the Apple iPhone 15 or Samsung Galaxy S24.

A taller image makes users scroll further to get past your post. This extra height keeps attention on your content. It also stops other posts from stealing the spotlight.

Keep your main text and visuals within the center 1080x1080 square. This step protects your layout when the post appears on your profile grid. Some accounts see 4:5 grid views, but many users still see square thumbnails.

Placing critical headlines, icons, or branding in the top or bottom 135 pixels risks awkward cropping on standard square profile grids. Designers call this protected middle area the safe zone. Keeping headlines centered prevents awkward cuts when viewers browse your profile feed.

Portrait slides also provide room for readable body copy. Educational carousels often need space for a bold headline, three to four bullet points, and an author attribution. The 1350-pixel vertical canvas accommodates these elements without forcing you to shrink typography to illegible sizes.

The 1:1 square format (1080x1080 pixels)

The square 1:1 format is a classic choice for feeds and tablets. It fits Instagram profile grids without any automatic cropping.

Square slides give you 1,166,400 pixels per card. Portrait slides give you 1,458,000 pixels. That means square cards lose 20% of your canvas space, leaving less room for text and charts.

Teams that share data, charts, or software screenshots often find square cards too tight. Save 1080x1080 carousels for simple photo sets or single quotes.

When you design square slides, visual margins become much tighter. A 100-pixel margin on all sides leaves only 880x880 pixels of usable layout area. For complex tutorials, that restriction makes text blocks compete directly with diagrams and illustrations.

Square cards still offer one clear advantage: absolute profile grid consistency. When an account relies heavily on uniform grid aesthetics, square slides prevent letterboxing or off-center thumbnail framing entirely.

The 1.91:1 landscape format (1080x566 pixels)

Landscape carousel posts measure 1080x566 pixels and perform poorly on phones. Because mobile feeds scroll up and down, a wide card covers less than 35% of the screen.

People swipe past landscape cards fast. Their thumbs cover the card in one move. The app also adds large empty black or white bars around wide cards.

Only use landscape sizes if you must show wide photos or 16:9 slides without redesigning them. If you want high reach and engagement, avoid landscape posts.

On modern smartphones, a landscape card leaves more than half the display empty. Above and below your post, content from competing accounts or sponsored ads remains visible. That distraction pulls reader focus away from your message.

Landscape carousels also compress horizontal text blocks uncomfortably. Trying to fit an informative headline and body paragraph into 566 vertical pixels forces tiny fonts that cause eye strain on small screens.

Aspect ratio consistency rules

Instagram applies the aspect ratio of your first slide to all other slides in the set. If your first slide is square, every slide after it will be cut into a square.

For example, upload a 1080x1080 square first and a 1080x1350 portrait second. Instagram cuts 135 pixels off the top and bottom of that second slide. This cuts off headlines, page numbers, and logos.

Always check that every slide has matching dimensions before you upload. Mismatched images will look broken in the feed.

The app interface allows users to tap an expand icon when selecting the opening image. However, that choice sets a global rule for the whole sequence. If you select portrait mode on the initial frame, any landscape graphic uploaded later in that carousel will be zoomed and cropped to fit 4:5.

To prevent accidental cropping during upload, keep a dedicated export folder for each carousel. Check the properties of every single image file before sending them to your scheduling dashboard or mobile device.

What is the recommended size and aspect ratio for LinkedIn carousel slides?

The recommended size for LinkedIn carousel slides is 1080x1350 pixels (4:5 portrait) or 1080x1080 pixels (1:1 square), saved as a PDF document. LinkedIn runs carousels through its document tool, which accepts PDF, DOC, DOCX, and PPT files.

According to LinkedIn Help: Share Documents as Posts, document uploads support file sizes up to 100 MB and lengths up to 300 pages. Desktop users click arrows to turn pages. Phone users swipe left and right just like they do on Instagram.

+-------------------------------------------------------------+
| LinkedIn Document Viewer Differences: Desktop vs Mobile    |
+------------------------------+------------------------------+
| Desktop Web Viewer           | Mobile Application Viewer    |
|                              |                              |
| - Inline PDF controls        | - Native swipe gesture       |
| - Clickable left/right arrows| - Full-screen modal mode     |
| - Optional full-screen button| - Portrait (4:5) fills view  |
| - Preserves vector text data | - Rasterizes slides internally|
+------------------------------+------------------------------+

Why 4:5 portrait dominates LinkedIn mobile engagement

Mobile devices drive more than 60% of all visits to LinkedIn. Just like on Instagram, a 1080x1350 slide fills more screen space in the mobile feed.

The LinkedIn mobile app places headers and reaction buttons around each post. A tall 4:5 slide pushes those buttons down, keeping eyes on your text.

Square slides work well on desktop screens because they fit above the fold. But if you want to reach busy leaders on their phones, 1080x1350 slides get more swipes.

For more layout tips, read our LinkedIn Carousel Size Guide 2026: Dimensions, Format & Specs.

The LinkedIn feed displays a preview title bar above document posts along with page numbers in the upper corner. A 4:5 aspect ratio maintains generous breathing room beneath these overlays, ensuring your cover headline stays visible.

Professional audiences scan content rapidly during work breaks or commutes. A taller card occupies the viewer's field of vision, filtering out surrounding updates and encouraging higher completion rates on multi-page presentations.

Standard PDF export requirements for LinkedIn

LinkedIn does not let you post loose JPEG or PNG files as swipeable cards. Instead, every page of your PDF becomes a single slide.

When you export your PDF from Figma or Canva, follow these basic rules:

Set the right canvas size: Use 1080x1350 pixels or 1080x1080 pixels for every artboard. Do not use US Letter or A4 print sizes.
Flatten heavy graphics: Flatten large photos and complex backgrounds before you export your file.
Keep text as vector paths: Make sure your design app saves text as vector paths so words stay sharp when users zoom in.
Use RGB color: PDF files can use CMYK for print, but web screens need RGB. CMYK files will show strange, neon colors on LinkedIn.

Standard print dimensions like US Letter (8.5x11 inches) or ISO A4 (210x297 mm) introduce awkward aspect ratios on digital devices. An A4 page produces an aspect ratio of roughly 1:1.414, which creates thin vertical margins and tiny fonts on mobile screens.

Vector text preservation is another major advantage of the PDF format. Unlike rasterized PNG images, vector fonts remain crisp even when desktop viewers click the full-screen expansion button. This clarity keeps technical diagrams, data tables, and footnotes readable across 4K desktop monitors.

Managing large multi-page decks

LinkedIn allows up to 300 pages per file, but the best carousels only use 8 to 15 pages. Long slide decks tire readers out and lower your read rates.

Keep your PDF file size between 5 MB and 25 MB. Large files close to the 100 MB limit take too long to open on mobile data.

If your slide deck is over 30 MB, compress your images while keeping the 1080x1350 size. Our guide to Free Carousel Tools: 5 Browser-Based Makers for LinkedIn and Instagram (2026) shares free tools for this task.

When a document exceeds 30 MB, LinkedIn's content delivery servers take several seconds to generate the initial page preview. On cellular connections, that latency causes users to scroll past before the first slide even renders.

Aim for a lean file by compressing embedded photography down to 150 DPI before PDF compilation. Because digital displays rarely exceed 150 DPI at native viewing dimensions, higher resolutions simply waste file weight without improving visual quality.

How do I prevent image compression and blurry text on carousel uploads?

You can prevent image compression and blurry text by uploading exact pixel dimensions, using vector text, and saving files in sRGB. Social media sites compress files to save bandwidth.

When an image does not match the target size, the platform resizes it. This scaling makes text fuzzy and adds dark rings around graphics.

Social media networks run automated compression algorithms on every upload. If your file measures 2160x2700 pixels, Instagram uses bicubic resampling to scale it down to 1080x1350. This recalculation softens sharp character edges and muddies fine lines.

Uploading an asset that is smaller than 1080 pixels wide causes the opposite problem. The platform interpolates pixels to enlarge the image, producing pixelated borders and blurry letterforms. Building precisely at 1080 pixels wide stops unwanted server-side transformations.

The role of the sRGB color profile

Web browsers rely on the sRGB color profile to display colors accurately. Many design tools default to Display P3 or Adobe RGB, which use wider color ranges.

When you upload Display P3 files, social apps strip the color tag. The browser then reads wide colors as sRGB, leaving your slides looking dull and washed out.

Set your design app to sRGB before you start:

Figma: Go to Preferences > Color Space > Select sRGB.
Canva: Files export in sRGB by default, but avoid print templates.
Adobe Photoshop: Go to Edit > Assign Profile > Select sRGB IEC61966-2.1.

Color shifts hit brand assets hard. If your primary brand color relies on saturated oranges, bright greens, or vibrant purples, an untagged Display P3 file will shift noticeably once uploaded.

Always embed the sRGB IEC61966-2.1 profile directly into the exported metadata. When Instagram and LinkedIn process the media, embedded profile tags guarantee that red, green, and blue coordinates translate accurately across mobile operating systems.

PNG vs JPEG export strategies for Instagram

The best file format depends on what your slide contains.

+--------------------------------------------------------------+
| Raster Format Selection Matrix                              |
+-----------------------+--------------------------------------+
| Asset Composition     | Optimal File Format & Export Logic   |
+-----------------------+--------------------------------------+
| Text-heavy graphics,  | PNG (PNG-24)                         |
| flat UI elements,     | - Retains ultra-sharp vector edges   |
| brand vectors, solid  | - Zero compression ringing on text   |
| color backgrounds     | - Keep individual files under 3 MB   |
+-----------------------+--------------------------------------+
| Rich photography,     | JPEG (High Quality, 85-90%)          |
| textured gradients,   | - Avoids massive file weights        |
| complex light renders | - Prevents Instagram upload rejections|
| and lifelike images   | - Visually identical to lossless PNG |
+-----------------------+--------------------------------------+

Use PNG-24 for slides with text, UI mockups, charts, or flat graphics. PNG keeps sharp contrast along letter edges without messy blur.

Use JPEG saved at 85% to 90% quality for photo slides. High-resolution photos saved as PNG can top 15 MB each. Instagram will compress large PNG files into low-quality JPEGs.

JPEG uses lossy compression based on the discrete cosine transform, which discards high-frequency visual data. For photographs, the human eye cannot detect these micro-adjustments. But around crisp typography or high-contrast icons, that loss creates visible smudges known as compression artifacts.

PNG-24 utilizes lossless compression. It preserves every single pixel value exactly as created on your design canvas. By keeping PNG file sizes under 3 MB per slide, you bypass the secondary compression triggers that Instagram applies to heavy images.

Typography rules for crisp mobile rendering

Clear mobile text requires simple rules for font sizes and weights:

Avoid thin fonts: Fonts lighter than Regular (400 weight) break down when compressed. Use Medium (500) or Bold (700) for all text.
Follow minimum font sizes: On a 1080x1350 canvas, keep body text at 28 pixels or larger. Set headlines between 54 and 80 pixels.
Check contrast: Keep a contrast ratio of at least 4.5:1 between text and background. Low contrast makes text hard to read.
Avoid harsh black on white: High contrast is good, but pure black on pure white can strain the eyes on OLED screens. Use dark gray (#111827) on off-white (#F9FAFB) for a clean look.

For more visual tips, read Design Tips Every Carousel Creator Needs in 2026.

Letter spacing, also called tracking, also affects how text renders after social compression. Tight tracking causes adjacent letters to bleed together when resized on mobile screens. Adding a slight tracking boost (+1% to +2%) on body copy keeps letter counters open and readable.

Line height requires similar attention. Set your line spacing between 130% and 150% of the font size. A 32-pixel body font needs roughly 44 to 48 pixels of line height to stop descenders and ascenders from overlapping on compressed mobile displays.

Designing seamless panoramic slides using exact split dimensions

You can design seamless panoramic slides by building one wide canvas that matches a multiple of 1080 pixels, then cutting it into slides. As people swipe, photos and shapes flow smoothly across the seams.

A panoramic layout looks polished. It invites readers to swipe through every card and keeps them on your post longer.

+-------------------------------------------------------------+
| Panoramic Canvas Layout (3-Slide Example)                   |
| Total Dimensions: 3240 x 1350 px                            |
+--------------------+--------------------+-------------------+
| Slide 1 (1080x1350)| Slide 2 (1080x1350)| Slide 3 (1080x1350)
|                    |                    |                   |
|      [Continuous Graphic Element Spans Across Seams]        |
| .................. : .................. : ................. |
| [Safe Zone: Centered Content]           | [Safe Zone]       |
|                    |                    |                   |
+--------------------+--------------------+-------------------+
| Slice Line 1 (x: 1080px)                | Slice Line 2 (x: 2160px)

Seamless carousels encourage continuous swiping because visual elements cross over the border of each individual card. When readers see half of an illustration or a curved line leading off the right edge, their curiosity prompts them to swipe left.

This layout style works particularly well for product roadmaps, workflow diagrams, case studies, and visual storytelling. Instead of feeling like isolated summary cards, the presentation flows like a single cohesive banner.

The math behind panoramic canvases

To find your canvas width in Canva or Figma, multiply 1080 pixels by your total slide count. Keep the canvas height at 1350 pixels:

2 slides: 2160 x 1350 pixels (1080 x 2)
3 slides: 3240 x 1350 pixels (1080 x 3)
4 slides: 4320 x 1350 pixels (1080 x 4)
5 slides: 5400 x 1350 pixels (1080 x 5)
6 slides: 6480 x 1350 pixels (1080 x 6)
7 slides: 7560 x 1350 pixels (1080 x 7)
8 slides: 8640 x 1350 pixels (1080 x 8)
9 slides: 9720 x 1350 pixels (1080 x 9)
10 slides: 10800 x 1350 pixels (1080 x 10)

For square carousels, use the same math with a height of 1080 pixels. For example, a 3-slide square canvas is 3240x1080 pixels.

Working with wide canvases can push the memory limits of web design software. When creating 10-slide panoramas at 10800x1350 pixels, browser tabs can slow down if you populate the board with uncompressed photographs.

To maintain fast canvas performance, place rough placeholder images while laying out your visual composition. Swap in your full-resolution graphics right before you perform the final slice and export.

Avoiding the slide-seam typography trap

Never place text across a cut line. Photos and shapes can cross slide borders, but words must stay on one slide.

When users pause mid-swipe, their thumb rests on the seam. If a word is cut in half, nobody can read it until the card snaps into place.

Follow these steps to keep text clear:

Add vertical guide lines at every 1080-pixel mark (such as x = 1080px and x = 2160px).
Leave a safe margin of at least 80 pixels on each side of every cut line.
Keep all text, titles, and icons inside these safe zones.
Let only background photos, shapes, or design lines cross the cut lines.

Mobile devices display carousels through paging scroll views that momentarily settle on seams during partial swipes. If an essential word is sliced across that border, the reader encounters visual friction.

Safe margins of 80 to 100 pixels on either side of each seam ensure that complete thoughts remain readable on individual slides. Even if the viewer never completes the swipe, each card delivers clear stand-alone value.

Slicing your panoramic artboard cleanly

After finishing your layout, export the wide canvas as one large image. Then cut it into separate 1080x1350 slides.

Cutting images by hand in basic editors can cause small rounding errors. A slice that is 1079 or 1081 pixels wide makes Instagram stretch the image, which creates blurry lines.

To split your images quickly, read our guide on How to use a carousel splitter to create seamless multi-slide posts.

Using dedicated slicing tools prevents off-by-one pixel errors that ruin seamless effects. If a single slice is exported at 1079 pixels, Instagram stretches that frame by one pixel to match the 1080-pixel container. That tiny adjustment throws off the alignment of graphics that span across adjacent slides.

Automated splitters divide master banners using exact mathematical coordinates. They export sequentially numbered files, such as slide-01.png and slide-02.png, ensuring a seamless upload process without confusing slide order.

Verifying dimensions with a browser-based size checker tool

You can verify your carousel dimensions, aspect ratios, and file sizes before uploading by using an online checker. Social media apps do not warn you about bad sizes; they just crop or blur your work.

The free browser tools from Carousel Post let you check image files and PDF documents in seconds without installing heavy software.

+-------------------------------------------------------------+
| Pre-Publishing Carousel Verification Workflow               |
+-----------------------------+-------------------------------+
| [Step 1: Canvas Design]                                     |
| Design in Figma/Canva at 1080x1350 px (sRGB color profile)  |
|                             |                               |
|                             v                               |
| [Step 2: Export Phase]                                      |
| Export as PNG/JPEG (Instagram) or Multi-Page PDF (LinkedIn) |
|                             |                               |
|                             v                               |
| [Step 3: Verification Tool]                                 |
| Drop files into Carousel Post Size Checker                  |
| - Verifies exact 4:5 aspect ratio                           |
| - Checks file size (<30MB image / <100MB PDF)               |
| - Flags CMYK color profiles or non-sRGB spaces              |
|                             |                               |
|                             v                               |
| [Step 4: Publishing]                                        |
| Push validated, pixel-perfect assets to platform feeds       |
+-------------------------------------------------------------+

Manual inspection often misses subtle export errors. A designer might inadvertently export one slide from Canva using print settings while exporting the remaining slides using digital web settings.

An automated pre-flight tool scans the header metadata of every image and document page. It instantly catches mismatched pixel bounds, unsupported color spaces, or bloated file weights before your post reaches public feeds.

Pre-upload file validation checklist

Run through this quick checklist before you schedule or publish your post:

Pixel dimensions: Check that each slide is 1080x1350 pixels (portrait) or 1080x1080 pixels (square). Make sure all slides match.
Aspect ratio: Confirm the ratio is 4:5 (0.8) or 1:1 (1.0). Odd shapes create black bars.
Color space: Verify your file uses sRGB IEC61966-2.1. If you see Display P3, convert it before posting.
File size: Keep Instagram images under 30 MB (1 MB to 3 MB is ideal). Keep LinkedIn PDF files under 100 MB.
Page layout: Make sure all PDF pages share the same orientation. A single landscape page inside a portrait PDF breaks the mobile viewer.

Running these fast checks ensures your hard work looks crisp in the feed.

When team members collaborate across copy, design, and scheduling, mistakes happen. Establishing a standardized validation checklist protects your brand reputation. Catching a blurry slide or cropped chart before publishing saves you from deleting and reposting content later.

Next steps for building crisp multi-slide carousels

Great carousels rely on simple rules: design at 1080x1350 pixels, use sRGB, keep text away from seams, and pick the right file format for each platform.

Check your current templates against these specs, test your files in the Carousel Post size checker, and upload your next post with total confidence.

FAQ

What is the best carousel images size for Instagram in 2026?

The best carousel images size for Instagram in 2026 is 1080x1350 pixels with a 4:5 portrait ratio. This tall shape fills more of the mobile screen than a square post. Users see your content first, which boosts swipe rates and dwell time. Keep in mind that Instagram crops every slide to match the shape of your first slide.

Why does LinkedIn blur carousel slides exported from Canva or Figma?

LinkedIn blurs carousel slides when your exported PDF uses low-resolution images, non-standard page sizes, or the wrong color space. When page sizes vary, LinkedIn scales the file, which creates fuzzy text and blurry photos. To stop this, export slides at 1080x1350 pixels in sRGB. Keep text layers as sharp vector paths whenever your design software allows it.

Can you mix portrait and square slide sizes within one carousel post?

No, you cannot mix portrait and square slide sizes within one carousel post on Instagram or LinkedIn. Instagram forces all slides to match the shape of the first image in your set, which cuts off edges. LinkedIn forces all pages to follow one layout too. However, mixing slide sizes in your PDF will cause ugly gray bars around your content.

What is the maximum file size for a LinkedIn carousel PDF?

The maximum file size for a LinkedIn carousel PDF is 100 MB, with an upper limit of 300 pages. Most top posts stay between 5 MB and 25 MB across 8 to 15 pages. Small files load much faster on mobile feeds. However, files over 30 MB can freeze or fail to load on weak phone connections.

Should I export Instagram carousel slides as PNG or JPEG?

You should export Instagram carousel slides as PNG files for text and graphics, and JPEG files for photos. PNG keeps sharp lines around text, icons, and diagrams without ugly compression artifacts. JPEG works best for photos because it keeps file sizes small. However, PNG files over 10 MB may trigger heavy compression that ruins image clarity.

Carousel images size: exact dimensions and specs for Instagram and LinkedIn